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<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
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<body>
  
  <script src="./js/inherit_utils.js"></script>
  <script>
    // 寄生组合式继承
    // 原型链/借用/原型式(对象之间)/寄生式函数
    function Person(name, age, height) {
      this.name = name
      this.age = age
      this.height = height
    }

    Person.prototype.running = function() {
      console.log("running~")
    }
    Person.prototype.eating = function() {
      console.log("eating~")
    }


    function Student(name, age, height, sno, score) {
      Person.call(this, name, age, height)
      this.sno = sno
      this.score = score
    }

    inherit(Student, Person)
    Student.prototype.studying = function() {
      console.log("studying")
    }

    // 创建实例对象
    var stu1 = new Student("why", 18, 1.88, 111, 100)

  </script>

</body>
</html>
